Flush-tank ball seat



1,624,234 1927' P. B. HALE FLUSH TANK BALL SEAT Filed Oct. 27, 1923 Patented Apr. 12, 1927..

UNITED STATES PRATT B. HALE, OF ALBANY, ALABAMA.

FLUSH-TANK BALL SEAT.

Application filed October 27, 1923.

The object of the present inventioiris to provide a flush tank fixture which admits of the usual ball seat being readily replaced when worn ata small expense, thereby obviating the waste of water and the expense incident to replacing the fixture by a new one.

Other objects and advantages will be apparent and suggest themselves as the nature ot the invention is understood.

While the drawings ilustrate an embodiment of the invention it is to be understood that in adapting the same to meet dili'erent conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the na ture of the invention;

Referring to the accompanying drawings torming a part of the application:

Figure l is an efevational view of a flush tank fixture embodying the invention having parts broken away to show more clearly the renewable hall valve seat,

Figure 2 is a side view of the removable seat,

l igure 3 and Figure d is a scctiona' view of a modified form of seat.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The flush tank fixture illustrated is of ordinary construction with the exception of the change whereby the seat for the ball valve is made renewable. The fixture comprises a base 1 having a coupling end 2 and lateral extension 3 to which is fitted the overflow pipe d. in accordance with the present invention. the opening of the base 1 usually closed by means of a ball valve 5 a top plan view of the seat,

Serial No. 671,175.

is internally screw threaded as indicated at 6 and receives a seat 7 which is externally screw threaded as indicated at 8 to match the screw threads 6 of the base 1. The seat 7 flares upwardly and is reourved at its upper edge as indicated at 9 to extend over the upper edge of the base 1 in line with the opening thereof. The seat 7 is preferably constructed of hard rubber although it may consist of any material suitable for the pur pose and not affected by moisture.

The seat 7 illustrated in Figure 4: has a depending flange 10 and the space 11 formed between the flange 10 and the body of the seat is adapted to receive a cementing material such as white lead or putty, this form of seat being provided -for ordi nary flush tank fixtures devoid of the inner screw threads 6.

The present invention admits ot renewing the seat of a flush tank fixture at a comparatively small cost and enables the replacc- .ment to be effected by the average person without requiring the services of a skilled mechanic or the replacement of the fixture as a whole.

lVhat is claimed is:

A. flush tank fixture con'iprising an upwardly and outwardly flaring annular wall provided with attaching means, said wall having an outer marginal flange at its upper edge, a lateral extension integral with said wall adapted for connection of an overflow pipe thereto, and a removable valve seat substantially of rubber screw threaded to the inner surface of said wall and having a flange adapted to hook over said flange, said valve seat being adapted to receive a ball valve.

In testimony whereof I attix my signature.

PRATT B. HALE, 

